Fluid injection apparatus



FIG. 1 is a perspective view of a fluid injection apparatus of ourdesign, showing our design as part of a fluid delivery system;

FIG. 2 is a perspective view showing the fluid injection apparatus ofour design;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line showing is for illustrative purposes only and forms nopart of the claimed design.

The ornamental design for a fluid injection apparatus, substantially asshown and described.